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mixer [17]
2 years ago
5

Make x the subject! urgent help

Mathematics
2 answers:
BabaBlast [244]2 years ago
8 0

<u>Answer:</u>

x = \frac{h}{b-t^2}

<u>Step-by-step explanation:</u>

t^2 = b - \frac{h}{x}

• First add  \frac{h}{x}  to both sides:

⇒ \frac{h}{x} + t^2 = b

• Now subtract  t^2  from both sides:

⇒ \frac{h}{x} = b - t^2

• Now multiply both sides by x :

⇒ h = x(b - t^2)

• Next divide both sides by  (b - t^2) :

⇒ \frac{h}{b-t^2} = x

∴  \boxed{x = \frac{h}{b-t^2}}  

Serhud [2]2 years ago
4 0

Answer:

x =  \frac{n}{b -  {t}^{2} }

Step-by-step explanation:

I supposed that is a "n".

Steps as below:

{t}^{2}  = b -  \frac{n}{x}  \\ b -  \frac{n}{x}  =  {t}^{2}  \\  -  \frac{n}{x}  =  {t}^{2}  - b \\  \frac{n}{x}  =  - ( {t}^{2}  - b) \\  \frac{n}{x}  = b -  {t}^{2}  \\ n = x(b -  {t}^{2} ) \\ x(b -  {t}^{2} ) = n \\ x =  \frac{n}{b -  {t}^{2} }

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Let u = (1, 2 -2), v= (2, 1, 3) and w = j + 4k. a) Find cos theta, where theta is the angle in degrees between u and w.
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